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"use strict";
/* globals Services, XPCOMUtils */
XPCOMUtils.defineLazyServiceGetter(
this,
"aomStartup",
"@mozilla.org/addons/addon-manager-startup;1",
"amIAddonManagerStartup"
);
XPCOMUtils.defineLazyServiceGetter(
this,
"clipboardHelper",
"@mozilla.org/widget/clipboardhelper;1",
"nsIClipboardHelper"
);
/* globals ExtensionAPI */
const PREFIX = "tart@mozilla.org";
this.tart = class extends ExtensionAPI {
constructor(...args) {
super(...args);
this.loadedWindows = new WeakSet();
}
onStartup() {
const manifestURI = Services.io.newURI(
"manifest.json",
null,
this.extension.rootURI
);
this.chromeHandle = aomStartup.registerChrome(manifestURI, [
["content", "tart", "chrome/"],
]);
this.framescriptURL = this.extension.baseURI.resolve(
"/content/framescript.js"
);
Services.mm.loadFrameScript(this.framescriptURL, true);
Services.mm.addMessageListener(`${PREFIX}:chrome-exec-message`, this);
}
onShutdown() {
Services.mm.removeMessageListener(`${PREFIX}:chrome-exec-message`, this);
Services.mm.removeDelayedFrameScript(this.framescriptURL);
this.chromeHandle.destruct();
}
receiveMessage({ target, data }) {
let win = target.ownerGlobal;
if (!this.loadedWindows.has(win)) {
let { baseURI } = this.extension;
Services.scriptloader.loadSubScript(
baseURI.resolve("/content/Profiler.js"),
win
);
Services.scriptloader.loadSubScript(
baseURI.resolve("/content/tart.js"),
win
);
this.loadedWindows.add(win);
}
function sendResult(result) {
target.messageManager.sendAsyncMessage(`${PREFIX}:chrome-exec-reply`, {
id: data.id,
result,
});
}
let { command } = data;
switch (command.name) {
case "ping":
sendResult();
break;
case "runTest":
win.gBrowserInit.idleTasksFinishedPromise.then(() => {
new win.Tart().startTest(sendResult, command.data);
});
break;
case "setASAP":
Services.prefs.setIntPref("layout.frame_rate", 0);
Services.prefs.setIntPref("docshell.event_starvation_delay_hint", 1);
sendResult();
break;
case "unsetASAP":
Services.prefs.clearUserPref("layout.frame_rate");
Services.prefs.clearUserPref("docshell.event_starvation_delay_hint");
sendResult();
break;
case "toClipboard":
clipboardHelper.copyString(command.data);
sendResult();
break;
default:
console.error(`Unknown TART command ${command.name}\n`);
break;
}
}
};